Index: llvm/lib/Object/WindowsResource.cpp
===================================================================
--- llvm/lib/Object/WindowsResource.cpp
+++ llvm/lib/Object/WindowsResource.cpp
@@ -465,8 +465,9 @@
   SectionOneHeader->PointerToLinenumbers = 0;
   SectionOneHeader->NumberOfRelocations = Data.size();
   SectionOneHeader->NumberOfLinenumbers = 0;
-  SectionOneHeader->Characteristics += COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
-  SectionOneHeader->Characteristics += COFF::IMAGE_SCN_MEM_READ;
+  SectionOneHeader->Characteristics = COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+                                      COFF::IMAGE_SCN_MEM_READ |
+                                      COFF::IMAGE_SCN_ALIGN_1BYTES;
 }
 
 void WindowsResourceCOFFWriter::writeSecondSectionHeader() {
@@ -483,8 +484,9 @@
   SectionTwoHeader->PointerToLinenumbers = 0;
   SectionTwoHeader->NumberOfRelocations = 0;
   SectionTwoHeader->NumberOfLinenumbers = 0;
-  SectionTwoHeader->Characteristics = COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
-  SectionTwoHeader->Characteristics += COFF::IMAGE_SCN_MEM_READ;
+  SectionTwoHeader->Characteristics = COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+                                      COFF::IMAGE_SCN_MEM_READ |
+                                      COFF::IMAGE_SCN_ALIGN_1BYTES;
 }
 
 void WindowsResourceCOFFWriter::writeFirstSection() {
Index: llvm/test/tools/llvm-cvtres/object.test
===================================================================
--- llvm/test/tools/llvm-cvtres/object.test
+++ llvm/test/tools/llvm-cvtres/object.test
@@ -9,6 +9,7 @@
 
 RUN: llvm-cvtres /verbose /out:%t %p/Inputs/test_resource.res
 RUN: llvm-readobj -coff-resources -section-data %t | FileCheck %s
+RUN: obj2yaml %t | FileCheck --check-prefix=SECTIONS %s
 
 CHECK:     Resources [
 CHECK-NEXT:  Total Number of Resources: 8
@@ -258,3 +259,11 @@
 CHECK-NEXT:    0770: 69742063 6F6E7461 696E7320 6D616E79  |it contains many|
 CHECK-NEXT:    0780: 20737472 696E6773 00000000 00000000  | strings........|
 CHECK-NEXT:  )
+
+SECTIONS:      - Name:            '.rsrc$01'
+SECTIONS-NEXT:   Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
+SECTIONS-NEXT:   Alignment:       1
+
+SECTIONS:      - Name:            '.rsrc$02'
+SECTIONS-NEXT:   Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
+SECTIONS-NEXT:   Alignment:       1